Tire casing or shoe.



. i. DEMAS.

TIRE CASING 0R SHGE.

AwLlcAnon mit) Genes. 1911.

1 ,26 l ,O 1 2. Patented Apr. 2, 1918.

DEMETREOS J. DEMAS, OF PITTSBURGH, PENNSYLVANIA.

TIRE CASING 0R SHOE.

Specification of Letters Patent.

Patented Apr. 2, 191s.y

Application filed October 26, 1917. Serial No. 198,687.

Be it known that I, DEMETnEos J DEMAS, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State ot' Pennsylvania, have invented certain new and useful improvements in Tire Casings or Shoes, of which the following is a specification.

My invention relates to improvements in tire casings or shoes provided with internal. reinforcing means or armors. l

An important object of the invention is to provide a tire easing of the. above mentioned character', having means which ren ders the same puncture proof to .a high degree and will prolong the life of the tire casing.

A `further object of the invention is to provide means of the above mentioned character, which are simple in construction and inexpensive to manufacture.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part ot' this specification and in which like numerals are employed to designate like Avparts throughout the same,

Figure l is a tansverse sectional view through the tire casing embodying my invention,

Fig. 2 is an enlarged transverse section through the internal armor clement,

Fig. fi is a similar view, parts broken away, through a slightly different toi-m of the invention,

Fig. 4 ig a similar View of a third different form of the invention,

Fig 5 is a detail section taken on line 5-5 of Fig. 4, and,

Fiff. G is a perspective View of an inner infiatingl strip.

In Figs. l to 4 inclusive, the, numeQal 5 designates a. tire easing or slioe. This tire missili;r or shoe comprises inner sections of talorii` o, which are covered or coated with rubber., as 'is well known. The numeral 7 designates the outer portion of the easing foi-ined of rubber and providingr a tread poi-lion 8. The. tire easing 5 is provided at its inner edges with heads 9, shown. The several parts or sections ot the tire casing are vulcanized together, as is the usual praeti.

.le '1"ig. 1, the tread portion 8 is shown.. pra vided with an internal armor 9', which is embedded therein. This internal armor 9 is formed of ropes or cords 10 orthe' like. The ropes or cords 10 are preferably formed of hemp or cotton, while other snit'- able material may or cords 10 extend circumferentially of the tire casing or shoe, and are bound together by transverse tying elements 1l woven thereabout and preferably in the form of slight strands of wire, as clearly Shown in Fig. 2.

ln Fig. 3, l have provided an internal armor l2 for the tread portion 8, comprising ropes or cords 13, which are embedded in the tread portion P and extend circumferentially thereof. These ropes or cords 13 are. hound together in a similar manner to the binding ropes or cords l0. Passed about the ropes or cords 13 are strands or loops 14, which are approximately U-shaped and eX- tei-d radially outwardly. These strands or loops are somewhat similar to the pile ot' an oriental rug. These radially extending strands are embedded in the tread portion of the tire and are found to greatly increase in strength and durability.

ln Figs, l and 5, an internal armor 15 is provided, embodying ropes or cords 16. which are embedded in the tread portion S and extend transversely thereof. These ropes or cords are hound together in a. similar manner to the ropes l0.

ln all forms ol: the invention, particular attention is called to the tact. that the. internal armor is arranged wholly exteriorly of the reintoreintl` and constitutes no part thereof, while this tire armor is also spaced from the outer surfaeeot' the lire easing A8.

ln Figs, l and (i, l have .shown an inflat.- ing si rip i8, iiormed oi suitably strong and .flexible rubber, valve '19, of any well known or preferred eonstruetion. This iulating' strip is designed to take the plaee of the ordinary inner tube and is arranged within the tire easing or shoe. 5 upon the heads Si, which contact with each other. rl`he heads are provided with eut-out portions at a suitable point to receive. the valve T9. The ends pf the strip i8 are adapted to he arranged 1n over-lapping;` relation. lt is obvious that when the. air is admited into the tire casing' 5 tln'ough the valve li), the inlaiinr .strip will he. eon'ipressed against the tire elsing, and form an air tight. joint therewith, thus dispensing with the use oi the ordinary inand carrying an inllatingbe employed. The.ropesl'ffj llt) ner tube. This infiating strip b being arranged in the inner portion of t e tire casn 1s not liable to puncture.

t is to be understood that the forms of my invention herewith shown and described are to be taken :is preferred examples of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the Spirit of the invention or the scope of the subjoined claim.

Having thus described my invention, I claim:

A tire casing of the character described, comprising a carcass formed of rub r and having' a fabric reinforcement in the inner portion thereof and an internal armor embedded in the rubber tread portion of the carcass and arranged extci'iorly of the fabric reinforcement, said nrnior comprising n plurality 0i' fibrous cords extending' longitudinally of said trend pm'tion in close relirtion, and fibrous strnrn'ls passed around the inner sides,l of the longitudinal cords with their ends projecting radially and ont- Werdly beyond the cords for :i substantial distance.

In testimony whereof I niix my signature.

DEMETREOS J. DEMAS. 

